I would ask the doctor who prescribed that medication, they would probably be able to advise you better based on their knowledge of you.
If that's not possible, here's my opinions:
I don't think Leviathan would pose much of a problem. One ingredient, yohimbe, is actually used sometimes to relieve some symptoms of sexual dysfunction that is a side effect of some SSRIs.
RPM might be a different story. It has naringin, which is also found in grapefruit juice. Grapefruit juice is widely known to have interactions with many drugs, with it's basic effect of prolonging the half-life or bioavailability, which can lead to toxicity issues or overdosing. Lexapro is listed as having a possible interaction with grapefruit juice, but naringin alone is said to have a less intense effect than grapefruit juice as a whole. So I'd say it's probably alright to use RPM.
I've used RPM and even grapefruit juice while taking a different SSRI and didn't notice any ill effects. Although, I was basically on the lowest possible dosages and tapering off of the SSRI. So it could be different story with those taking high doses of an antidepressant.
Other than these things, just watch that you don't suddenly start & stop with these supplements if you're prone to depression. Their caffeine and other ingredients do effect your mood, and can enhance depression symptoms if you're suddenly stopping supplementation of high doses.